The following fixes a wrongly typed variable causing an ICE.
PR tree-optimization/107554
* tree-ssa-strlen.cc (strlen_pass::count_nonzero_bytes):
Use unsigned HOST_WIDE_INT type for the strlen.
* gcc.dg/pr107554.c: New testcase.
Co-Authored-By: Nikita Voronov <nik_1357@mail.ru>
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O -foptimize-strlen" } */
+
+#define ELEMS 0x40000000
+
+int a[ELEMS];
+int b[ELEMS];
+
+int main()
+{
+ __builtin_memcpy(a, b, ELEMS*sizeof(int));
+}
/* Compute the number of leading nonzero bytes in the representation
and update the minimum and maximum. */
- unsigned n = prep ? strnlen (prep, nbytes) : nbytes;
+ unsigned HOST_WIDE_INT n = prep ? strnlen (prep, nbytes) : nbytes;
if (n < lenrange[0])
lenrange[0] = n;